Robust Routing in Changing Topologies
نویسندگان
چکیده
Nous proposons dans cet article une nouvelle version du problème de plus court chemin robuste. L’incertitude, qui ne concerne que les poids des arcs d’un graphe dans la version initiale, s’applique ici également à la structure même du graphe. Le problème consiste alors à trouver une séquence de chemins minimisant la somme des poids des chemins plus la somme des coût de transformation de deux chemins consécutifs. Après avoir formalisé le problème et établi sa complexité, nous donnons sa formulation mathématique ainsi qu’une relaxation. Nous proposons un algorithme polynômial pour les instances constituées de deux graphes et dans lesquelles le coût de désinstallation d’un arc est inférieur à son poids.
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